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Sexual reproduction plays an important role in the maintenance of the genetic variability of plant species. In the case of entomophilous species (like Pulsatilla grandis) pollinators are needed to this way of propagation. It is important to have complete knowledge on the pollinators to understand the biology of plant species. Our aim was to collect information about the pollinators of P. grandis, as there is no available data on the pollinators of this endangered species. We studied the flower-visiting species in 2017 and 2018 on the Csatár Hill near Veszprém (Hungary) in a population of about 2000 individuals of P. grandis. The number of collected Apis mellifera individuals (239) was the highest followed by Bombus (31 individuals) and Andrena (15 individuals) species. Lasioglossum, Polistes and Priocnemis species were collected as well. We collected 5 male insects which visit the flowers only for nectar but they can help the self-pollination as they are searching for nectar in the flower. We recorded the most intense flower visitation between 10-11 a.m. Our new results can help to develop the conservation strategy of P. grandis.

POLLINATORS OF PULSATILLA GRANDIS WENDER. IN SOUTHERN BAKONY (HUNGARY)